German Crumb Coffee Cake | Foodtalk

Ingredients

• 2 cups (426 g) brown sugar, packed
• 3 cups (360 g) all-purpose flour
• 1 cup (113 g) unsalted butter, softened
• 1 teaspoon (6 g) baking soda
• 1/2 teaspoon (3 g) fine sea salt
• 2 teaspoons (5 g) ground cinnamon
• 2 teaspoons (5 g) ground nutmeg
• 2 large eggs
• 1 cup (327 ml) sour milk (see notes below) or buttermilk