Preheat oven to 350°F.

Line a 8 x 8 baking sheet with parchment so that it hangs over edges a bit for easy removal.

Stir together flours, baking powder, cinnamon, cream of tartar, and salt in a medium bowl.

In an electric mixer beat together butter, almond butter, maple syrup, eggs and vanilla until evenly blended.

Slowly pour flour mix into mixer while running on low. As soon as it is incorporated add diced apples and almonds and stir together. Do not over mix, just a few turns with electric mixer, or stir together by hand.

Spread batter into prepared pan and smooth out top.

Add all ingredients into a food processor and process until a crumbly consistency.

Spread over the top of batter and using fingers gently press down into batter.

Bake in oven for 40-45 minutes until golden on top and a toothpick inserted into the center of the pan comes out clean.

Allow to cool completely then pull out of the pan by holding onto the parchment overlap. For extra clean cuts, use a large knife or pizza cutter.