Drain, chop, and thoroughly dry the cherries to prevent spreading.
Cream butter, granulated sugar, and brown sugar until fluffy; mix in eggs, vanilla, and cherry syrup.
Whisk flour, baking soda, baking powder, and salt, then add to wet ingredients to form dough.
Fold in chocolate chips and cherries; chill dough 20–30 minutes if soft.
Scoop onto parchment-lined pans and bake at 350°F (175°C) for 10–12 minutes.
Cool on the baking sheet 5 minutes before transferring to a rack.
Notes
• Over-wet cherries cause flat cookies—dry them very well.
• Add almond extract for a cherry–almond twist.
• Dough bakes thicker and tastier when chilled.