Cream butter and sugar, then beat until fluffy. Add eggs, lemon juice, lemon zest, and tea-infused milk. Whisk until smooth.
Add remaining dry ingredients and whisk to combine. Gently stir in blueberries. Spoon carefully into lightly-greased donut pan. Do not fill cups more than 2/3 full.
Bake at 425ยบ F for 7-9 minutes until the tops are golden and spring back when lightly pressed. Let cool for 5-10 minutes before removing from pan. Once cooled, drizzle with your favorite glaze.
Makes 18 donuts.
**To make tea-infused milk:
Add loose tea directly into the milk. Place into the refrigerator to cold-steep overnight (10-12 hours). Before using in recipe, pour through a strainer to remove the loose tea.