1/2 cup (1 stick) unsalted butter, softened
1/2 lb. (about 2 cups or 250 grams) confectioners' sugar
1 to 2 teaspoons cherry extract (to taste)
1/2 teaspoons vanilla extract
1/2 teaspoon lemon juice
1/4 teaspoon salt
2 tablespoons (30 ml) heavy cream

Beat the butter on high speed for 6 minutes, until very light and fluffy. Beat in the sugar until combined. Stir in the cherry and vanilla extracts, lemon juice, and salt. Add the heavy cream and whisk on high for 8 minutes.