Step 1

Preheat oven to 375ºF. Line a dozen muffin tins with liners or spray nonstick cooking spray over the tins.

Step 2

In a large bowl, whisk together the flour, oats, baking powder and salt. Add the mixed berries and toss to coat well. Set aside.

Step 3

Cream together the butter and sugar until light and fluffy. Add the eggs, one at a time, beating after each. Then, slowly stream in the milk. Mix until blended.

Step 4

Mix the wet ingredients with the dry ingredients, being careful not to smoosh the berries. Mix until just combined then fill prepared muffin tins with batter.

Step 5

To make the streusel, combine the brown sugar, flour, oats and cinnamon in a small bowl. Cut in the butter with your fingers until only small pea-sized clumps remain. Sprinkle streusel over each muffin.

Step 6

Bake muffins for 25-30 minutes, until golden brown and an inserted toothpick comes out clean or with a few moist crumbs.

Step 7

Allow muffins to cool completely on a wire rack. Enjoy with a smear of butter or a drizzle of honey!