Makes 1 pound
3 ounces light brown sugar
3 ounces granulated sugar
5 ½ ounces unsalted butter
1 ½ teaspoons ground cinnamon
1 teaspoon salt
½ teaspoon vanilla extract
9 ounces bread flour (all-purpose flour works fine, too)
1. Mix the brown sugar, granulated sugar, butter, cinnamon, salt, and vanilla.
2. Stir in the flour. The mixture should be crumbly and should not come together like a dough; you may need to add extra flour.
3. Store, covered, in the refrigerator to prevent the topping from drying out.