Sparkling Rhubarb Lemonade

fresh or frozen cup 1 2/3 c. (about 4 med. stalks) chopped rhubarb

lemon-lime soda or more to round out each glass [2 c.

sprigs Mint, fresh

zest 3-inch strips One 2 -inch strips lemon

freshly squeezed lemon juice [1 c., freshly squeezed

sugar [3/4 c.

Ice cubes - enough to fill each glass

water