01 -
Preheat oven to 400°F (200°C). Grease donut tin generously.
02 -
Trim strawberries and add to food processor. Pulse until you have a chunky puree, being careful not to liquefy completely. Set aside.
03 -
In a large mixing bowl, combine butter, sugar and egg. Mix on medium-high speed for about 2 minutes until well incorporated.
04 -
Add vanilla, buttermilk and strawberry puree to the mixture. Mix until blended thoroughly.
05 -
Add both flours, baking soda, baking powder and salt. Mix on low speed just until incorporated. Do not overmix. Scrape down sides of bowl if needed.
06 -
Transfer batter to a large piping bag or freezer bag. Place bag in a large cup with edges folded over for easier filling. Use a rubber spatula to transfer batter neatly. Close bag and snip corner if using freezer bag.
07 -
Pipe batter into greased donut tins, filling each cavity only halfway to allow for rising.
08 -
Bake for 7-8 minutes on middle rack until donuts spring back when lightly touched.
09 -
While donuts are baking, whisk together powdered sugar and milk in a bowl until smooth.
10 -
Transfer baked donuts to a wire rack. Pour glaze over each donut, allowing excess to drip off. Alternatively, dip tops of donuts into glaze. Allow glaze to set for 20-30 minutes before serving.