01 -
Preheat oven to 325°F (170°C). Line a large baking tray with parchment paper.
02 -
In a medium bowl, whisk together whole wheat flour, vanilla protein powder, granulated sugar, and baking powder until homogeneous.
03 -
In a separate bowl, stir together applesauce, neutral-flavored oil, and vanilla extract until smooth.
04 -
Add wet mixture to dry ingredients and mix until a soft dough forms. If the dough is dry or crumbly, add 1 to 2 teaspoons ice water as needed. Shape dough into a ball, wrap in plastic wrap, and refrigerate for 15 minutes.
05 -
Divide dough in half. Roll one half between two sheets of parchment to approximately 1/8-inch thickness. Cut into 8 equal rectangles. Repeat with remaining dough.
06 -
Arrange rectangles on the prepared baking tray. Spoon a generous amount of strawberry jam in the center of half the rectangles, leaving the edges clear for sealing.
07 -
Place remaining dough rectangles on top of filled ones. Press edges to seal, then crimp with a fork along the border to prevent filling from leaking.
08 -
Bake in preheated oven for 10 to 15 minutes, or until crust is just golden. Remove and cool completely on a wire rack.
09 -
In a small bowl, whisk together confectioners' sugar, milk or water, and vanilla extract until smooth. Add more liquid gradually to reach a spreadable consistency as needed.
10 -
Spread glaze evenly over cooled pastries, leaving a small border uncoated. Optionally, top with sprinkles. Allow glaze to set fully at room temperature.