Gandakan Batangan Mentega Apel Streusel

Bahan-bahan (20 porsi)

• 2 cups all purpose flour
• 1 1/2 cups old fashion oats
• 1/2 cup raw pecans
• 1 cup brown sugar
• 1 teaspoon baking powder
• 1 teaspoon cinnamon
• 2 sticks (1 cup) cold salted butter, cubed
• 1 cup apple butter, homemade or store bought
• 2 honey crisp apples, thinly sliced
• 2 tablespoons pure maple syrup
• 1 tablespoon all-purpose flour
• 1/2 teaspoon cinnamon
• 1/4 teaspoon nutmeg
• 2 teaspoons vanilla extract
• 2 tablespoons cold salted butter, thinly sliced