Three Tier Punch
In a medium saucepan combine the sugar and water and bring to a boil. When the sugar has melted, remove from the heat and add the basil leaves. Let stand until completely cooled, then strain through a fine mesh sieve and discard solids. Refrigerate syrup until ready to use.
Place 1/4 cup of the chilled syrup, the white wine, and orange juice in a pitcher and stir to combine. Serve chilled.
For step 3: To the pitcher add the bitters, seltzer water, and remaining syrup and stir to blend. Serve over ice.