Preparation Puree thawed berries in processor. Strain into pitcher, pressing on solids in strainer to extract as much liquid as possible. Mix in lemon juice and sugar; stir until sugar dissolves. Mix in 2 cups water. Fill pitcher with ice. Let stand 5 minutes. Fill 4 to 6 tall glasses with ice; add lemonade. Garnish with lemon slices and fresh raspberries.
Preparation Puree thawed berries in processor. Strain into pitcher, pressing on solids in strainer to extract as much liquid as possible. Mix in lemon juice and sugar; stir until sugar dissolves. Mix in 2 cups water. Fill pitcher with ice. Let stand 5 minutes. Fill 4 to 6 tall glasses with ice; add lemonade. Garnish with lemon slices and fresh raspberries.