Classic Crumb Cake Recipe | King Arthur Baking

Ingredients

• 8 tablespoons (113g) unsalted butter, at room temperature, at least 65°F
• 1 1/4 cups (248g) granulated sugar
• 3/4 teaspoon table salt
• 2 1/2 teaspoons King Arthur Pure Vanilla Extract
• 1/8 teaspoon lemon oil or 1 teaspoon lemon zest
• 3 large eggs, at room temperature
• 1 1/2 cups (180g) King Arthur Unbleached All-Purpose Flour
• heaping 1/8 teaspoon baking soda
• 1/2 cup (113g) plain yogurt, buttermilk, or sour cream, or vanilla yogurt, at room temperature
• 4 tablespoons (57g) butter, melted
• 1 cup (120g) King Arthur Unbleached All-Purpose Flour
• 2/3 cup (74g) confectioners' sugar
• 1/4 teaspoon table salt
• 3/4 teaspoon King Arthur Pure Vanilla Extract
• 1 to 2 tablespoons King Arthur Snow White Non-Melting Sugar or confectioners' sugar, for sprinkling on top