Blend the cottage cheese until completely smooth
In a microwave-safe mug, whisk together the cottage cheese, egg, and maple syrup until well combined
Add the oat flour, baking powder, cinnamon, nutmeg, and salt, mixing until smooth
Gently fold in the diced apple pieces
Microwave for 60–90 seconds, until the cake is fluffy and just set in the center
Top with Greek yogurt, a drizzle of maple syrup, and a sprinkle of cinnamon
Serve and enjoy
