1 cup (240 ml) walnuts or pecans
1/4 cup (55 grams) light brown sugar
1/3 cup (80 ml) mini chocolate chips
3/4 teaspoon ground cinnamon
1 tablespoon all purpose flour
Coffee Cake:
1 2/3 cups (215 grams) all purpose flour
1 teaspoon baking powder
1/2 teaspoon baking soda
1/4 teaspoon salt
1/2 cup (113 grams) unsalted butter, room temperature
1 cup (200 grams) granulated white sugar
2 large eggs
1 teaspoon pure vanilla extract
3/4 cup (180 ml) sour cream or plain yogurt (full or reduced fat)
Read more: http://www.joyofbaking.com/breakfast/CoffeeCake.html#ixzz3V07oSg7N