chocolate chip crumb cake - Lisi's Kitchen

Ingredients

• 1/3 cup all purpose flour
• 1/2 cup packed light brown sugar
• 1/4 teaspoon kosher salt
• 4 tablespoons (1/2 stick) unsalted butter, cut into pieces and chilled
• 1 teaspoon pure vanilla extract
• 2 cups all purpose flour
• 2 teaspoons baking powder
• 1/4 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 3/4 cup (1.5 sticks) unsalted butter, room temp
• 1 cup sugar
• 2 large eggs
• 2 teaspoons pure vanilla extract
• 3/4 cup buttermilk
• 1 3/4 cup mini chocolate chips