Ingredients
Berry filling
- 450 gram BlackBerry
- 50 gram Sugar
- 40 gram Corn starch
Instructions
- For the crumbs: combine the oatmeal and oatmeal flakes in a bowl.
- Add the chopped walnuts, cinnamon, sugar and a pinch of salt.
- Add pieces of cold butter.
- RUB thoroughly with your hands into a crumb.
- For berry filling: add sugar and cornstarch to the blackberries, mix thoroughly and gently (I used frozen berries, did not defrost them beforehand).
- In a baking dish (the size of my form is 18 x 26, the bottom is covered with parchment), put half the crumbs, flatten and slightly tamp.
- Spread the BlackBerry filling on top.
- Spread the remaining crumbs over the entire surface. Send to bake in a preheated 190 degree oven for 40-45 minutes (focusing on the Golden top and features of your oven). Remove the finished product from the oven and allow to cool completely.
- Put the already cooled cookie stock in the refrigerator for a couple of hours (I left it overnight), then cut it into pieces (I got 12 pieces).