n ll ingredients should be at room temperature. Eggs and sugar put into the mixer bowl and mix. Then add the fat, yogurt, flour, baking soda, and cinnamon extract. Blend for connecting the components. At the end, add blackberries and stir gently.nn Preheat oven to 200 degrees C (390F)put in baking tray on muffin cups (baked muffins in two batches). Fill out the dough to ¾ height. Bake for about 20 minutes until a light golden brown...n