1 tablespoon unsalted butter for greasing the ramekins
2 cups fresh ripe raspberries
5 tablespoons unbleached all-purpose flour
1 tablespoon cornstarch
1/4 teaspoon salt
3 large eggs (separated)
1 cup Sugar (divided)
1 cup whole milk
1/2 cup fresh lemon juice
  grated rind of 1 lemon (zest)
3 tablespoons unsalted butter (melted)
  Whipped cream (as garnish)
  Fresh mint sprigs (as garnish)