SWEET PEACH STREUSEL MUFFINS

Name: SWEET PEACH STREUSEL MUFFINS
Ingredients: For the muffins; 1/2 cup salted butter, softened; 1/2 cup white sugar; 1/2 cup light brown sugar; 1 teaspoon cinnamon; 2 cups flour; 2 teaspoons vanilla; 2 eggs, at room temperature; 1/2 cup milk; 2 peaches, unpeeled and diced; 1 1/2 teaspoons baking powder; 1/2 teaspoon nutmeg; For the streusel topping; 1 teaspoon cinnamon (preferably Saigon); 1/2 cup brown sugar; 1/4 cup flour; 1/3 cup rolled oats; 3 tablespoons cold unsalted butter; 1 pinch salt