Heat oven to 325°F. Line two baking sheets with parchment.
Blot cherries very dry, chop, then blot again to reduce bleeding.
Cream butter and powdered sugar on medium until smooth and slightly fluffy, 1–2 minutes.
Mix in vanilla and almond extract. Stir in cherry juice if using.
Whisk flour, cornstarch, and salt. Add to the bowl and mix on low until dough clumps.
Fold in mini chocolate chips and chopped cherries until just combined.
Scoop 1-tbsp portions, roll into balls, and set 2 inches apart. Gently flatten to 1/2-inch thick.
Bake 12–15 minutes, until edges are set and bottoms are pale golden.
Cool 5 minutes on the sheet, then transfer to a rack to finish cooling.