Go Back

High-Protein Apple Cheesecake Bars

Abby Healthyseries
Creamy cheesecake meets spiced apples and a golden oat crumble in a high-protein bar. Each bar is 210 calories with 17 g protein, perfect for dessert, post-workout, or meal prep.
Print Recipe
Prep Time 20 minutes
Cook Time 40 minutes
Chill time 4 hours
Course Breakfast, Dessert, Snack
Cuisine American, Fall
Servings 12 Bars
Calories 210 kcal

Equipment

  • 8x8-inch square baking pan
  • Parchment paper
  • nonstick spray
  • Mixing bowls
  • hand mixer or whisk
  • Measuring cups & spoons
  • Spatula
  • nonstick skillet
  • rubber spatula
  • Sharp knife

Ingredients
  

Crust

  • ¾ cup oat flour (75 g)
  • 1 scoop vanilla whey protein (30 g)
  • 2 tbsp unsweetened applesauce (30 g)
  • 1 tbsp light butter or coconut oil, melted (10–12 g)
  • 2 tbsp monk fruit erythritol blend (or preferred granular sweetener)
  • 1 tsp ground cinnamon
  • pinch of girl
  • 1-2 tbsp unsweetened almond milk (only if needed to bind)

Cheesecake layer

  • 8 oz light cream cheese softened (225 g)
  • ¾ cup nonfat Greek yogurt (170 g)
  • 1 scoop vanilla whey protein (30 g)
  • 2 eggs white (large)
  • 2-3 tbsp monk fruit sweetener (adjust to taste)
  • 1 tsp vanilla extract
  • pinch of salt

Apple layer

  • 2 medium apples peeled and diced (about 260 g total) Fuji or Honeycrisp recommended for texture
  • 1 tsp ground cinnamon
  • 1 tbsp sugar-free maple syrup or monk fruit syrup
  • 1 tsp lemon juice
  • Pinch of nutmeg (optional)

Crumble topping

  • ½ cup rolled oats (50 g)
  • 1 scoop vanilla whey protein (30 g)
  • 1 tbsp almond flour
  • 1 tbsp unsweetened applesauce
  • 1 tbsp sugar-free maple syrup or monk fruit syrup
  • 1 tsp ground cinnamon
  • 1 tbsp light butter or coconut oil, melted (10–12 g)

Instructions
 

Step 1 - Prep pan and preheat oven

  • Preheat the oven to 325°F (160°C). Line an 8x8-inch square pan with parchment paper, leaving a 1–2 inch overhang on two sides for easy lifting. Lightly spray the parchment with nonstick spray or grease the pan edges.

Step 2 - Make the crust dough

  • In a large bowl, whisk together 3/4 cup oat flour, 1 scoop vanilla whey protein (30 g), 2 tbsp sweetener, 1 tsp cinnamon, and a pinch of salt until evenly combined. Add 2 tbsp unsweetened applesauce and 1 tbsp melted light butter. Stir with a fork or rubber spatula until a soft, slightly sticky crumb forms. If the mixture feels too dry to press, add 1 tbsp unsweetened almond milk and mix again.

Step 3 - Press and parbake the crust

  • Reserve about one-third of the crust mixture for the crumble topping. Press the remaining two-thirds firmly and evenly into the bottom of the prepared pan (use the bottom of a measuring cup for an even press). Bake the crust in the preheated oven for 8–10 minutes, until lightly fragrant and just set. Remove and let cool 8–10 minutes while you make the cheesecake layer.

Step 4 - Bring the cream cheese to room temperature

  • While crust cools, take the light cream cheese out of the fridge if not already softened. Work with room-temperature cream cheese for a lump-free cheesecake. If you are short on time, microwave the block of cream cheese for 10 seconds, then rest 30 seconds and stir to check softness.

Step 5 - Make the cheesecake filling

  • In a medium bowl, beat 8 oz softened light cream cheese with a hand mixer or whisk until smooth and free of lumps, about 60–90 seconds. Add 3/4 cup nonfat Greek yogurt, 2–3 tbsp monk fruit sweetener, 1 tsp vanilla, and a pinch of salt. Beat until smooth and silky. Add the 2 egg whites one at a time, mixing briefly after each addition until incorporated. Sift or sprinkle 1 scoop vanilla whey protein (30 g) over the mixture and gently fold in with a rubber spatula until just combined. Do not overmix. The batter should be pourable but thick.

Step 6 - Pour cheesecake over crust

  • Pour the cheesecake mixture evenly over the slightly cooled crust and smooth the top with an offset spatula or spoon so it is even.

Step 7 - Prepare the spiced apple layer

  • Core and peel the apples. Dice into approx 1/2-inch pieces. In a nonstick skillet over medium heat, combine diced apples, 1 tsp cinnamon, 1 tbsp sugar-free maple syrup, and 1 tsp lemon juice. Cook for 3–4 minutes, stirring occasionally, until apples begin to soften but still hold shape and juices thicken slightly. Remove from heat and let cool 1–2 minutes. If there is excess liquid, drain apples using a slotted spoon so you do not add extra moisture to the cheesecake layer.

Step 8 - Add apples to the pan

  • Using the slotted spoon, evenly distribute the warm apple pieces over the cheesecake layer. Gently press them into the top so each square will have apple in it.

Step 9 - Make the crumble topping

  • In a bowl, combine 1/2 cup rolled oats, 1 scoop vanilla whey protein (30 g), 1 tbsp almond flour, 1 tsp cinnamon, and a pinch of salt. Add 1 tbsp applesauce, 1 tbsp sugar-free maple syrup, and 1 tbsp melted light butter. Mix until you have coarse, clumpy crumbs. Sprinkle the reserved crumble evenly across the apples, pressing lightly so it adheres but remains rustic.

Step 10 - Bake the assembled bars

  • Place the pan in the preheated oven and bake for 35–40 minutes, until the edges look set and the center has a slight jiggle when you gently shake the pan. The top should be lightly golden. Avoid overbaking; the center will firm as it cools.

Step 11 - Cool then chill fully

  • Remove the pan from the oven and let cool completely on a wire rack for 30–45 minutes. Then cover loosely with plastic wrap and transfer to the refrigerator for at least 4 hours or overnight. Chilling is essential for the cheesecake layer to set and for clean slices.

Step 12 - Slice and serve

  • Use the parchment overhang to lift the set slab from the pan. Place on a cutting board. For clean slices, run a sharp knife under hot water, dry it, then make each cut, wiping the blade between cuts. Slice into 12 bars. Serve cold or slightly chilled. To warm, microwave a bar for 10–15 seconds.

Step 13 - Extra finish and serving suggestions

  • Optional: top with a spoonful of Greek yogurt, a dusting of cinnamon, or a drizzle of sugar-free maple syrup. Serve with coffee or as a post-workout treat.

Notes

  • Prevent lumps in cheesecake: Use room temperature cream cheese and beat it long enough to be smooth before adding other ingredients. If lumps persist, press the mixture through a fine mesh strainer or beat a bit longer.
  • Avoid chalky protein flavour: Fold protein powder in gently and do not exceed the indicated amount. Using vanilla whey reduces chalky taste.
  • Watch moisture from apples: Cook apples briefly and use a slotted spoon to remove them from skillet; excess liquid will make the cheesecake too soft.
  • Do not overbake: The center should still jiggle slightly; it sets while chilling. Overbaking makes a dry, crumbly texture.
  • Easy clean cuts: Chill fully, use the hot-water knife trick, and wipe between slices.
  • Make ahead: Bake, chill, and refrigerate for up to 5 days; freeze individual bars for up to 2 months.

Substitutions & Variations

  • Dairy-free: Use vegan cream cheese and plant-based yogurt. Texture will be slightly softer.
  • Vegan protein: Use a pea or blended plant vanilla protein and add 1-2 tbsp extra almond milk if the batter looks thick.
  • Lower carb: Swap apples for 1 cup berries and reduce sweetener. Macros will change.
  • Nut-free: Omit almond flour from crumble and use an extra 2 tbsp oats instead.
Keyword cheesecake bars, fall recipes, healthy apple dessert, healthy dessert, meal prep