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Protein Lava Cake - A Gooey, High-Protein Treat

Prep Time 10 minutes
Cook Time 12 minutes
Total Time 22 minutes
Servings: 4 servings

Ingredients
  

  • 1 scoop (25–30 g) chocolate whey or casein-blend protein powder (casein or a whey-casein blend gives the best texture)
  • 2 tablespoons unsweetened cocoa powder
  • 2 tablespoons fine oat flour (or almond flour for gluten-free)
  • 1 large egg
  • 3 tablespoons milk (dairy or unsweetened almond milk)
  • 1 tablespoon Greek yogurt (or 1 tablespoon pumpkin puree for dairy-free)
  • 2–3 teaspoons granulated sweetener (sugar, coconut sugar, or a zero-calorie sweetener to taste)
  • 1/4 teaspoon baking powder
  • Pinch of salt
  • 1 ounce dark chocolate (70%+), chopped (or 1 tablespoon chocolate chips)
  • 1/2 teaspoon vanilla extract
  • Optional: 1–2 teaspoons espresso powder for richer chocolate flavor
  • Butter or oil spray for greasing ramekins

Method
 

  1. Prep your ramekins: Lightly grease two 6-ounce ramekins or one 8-ounce ramekin with butter or oil spray. Preheat the oven to 400°F (200°C). If using an air fryer, preheat to 350°F (175°C).
  2. Mix dry ingredients: In a small bowl, whisk the protein powder, cocoa powder, oat flour, baking powder, salt, and espresso powder (if using) until no lumps remain.
  3. Combine wet ingredients: In another bowl, whisk the egg, milk, Greek yogurt, sweetener, and vanilla until smooth.
  4. Bring it together: Fold the dry ingredients into the wet just until combined. The batter should be thick but scoopable. If it feels dry, add 1–2 teaspoons more milk.
  5. Fill and add the “lava”: Spoon half the batter into the ramekin(s). Place the chopped dark chocolate in the center. Top with the remaining batter, making sure the chocolate is fully covered.
  6. Bake: Bake 8–10 minutes (ramekins vary). The edges should look set, but the center should have a slight jiggle. In an air fryer, start checking at 6–7 minutes.
  7. Rest briefly: Let the cake sit for 1 minute to finish setting while staying molten inside.
  8. Serve: Run a knife around the edge, invert onto a plate, and lift off the ramekin. Or eat straight from the dish. Add a scoop of Greek yogurt, a sprinkle of cocoa, or fresh berries if you like.