Infuse the milk: Warm the milk until steaming but not boiling. Add the chamomile tea bags and let steep for 10–15 minutes. Remove the bags and let the milk cool slightly.
Prepare the oven: Preheat to 350°F (175°C) and line a muffin tin with cupcake liners.
Cream butter and sugar: In a bowl, beat the butter and sugar until pale and fluffy.
Add eggs and vanilla: Beat in the eggs one at a time, then stir in vanilla.
Mix dry ingredients: In a separate bowl, whisk flour, baking powder, and salt.
Combine batter: Add the dry mixture to the wet, alternating with chamomile milk. Mix until smooth but don’t overbeat.
Bake: Divide batter evenly into liners, filling about ⅔ full. Bake for 18–20 minutes, or until a toothpick comes out clean.
Cool: Place on a wire rack and let cupcakes cool completely before frosting.
Make buttercream: Beat softened butter until smooth. Add powdered sugar gradually, then mix in honey and a pinch of salt. Add cream until the texture is fluffy and spreadable.
Frost and serve: Pipe or spread the honey buttercream over cooled cupcakes. Garnish with chamomile flowers or a drizzle of honey if desired.