Bob Dylan's finest mint julep

For ➊ drink
6 tbs Bourbon whiskey
1 tbs powder sugar
4 mint sprigs
1 tbs water

A traditional way to make a julep is to bruise the mint leaves, and put them in a glass with sugar, and add ice and bourbon. Bob Dylan described in his Theme Time Radio Hour how to make, by his preferences, a perfect mint julep:
“First up, you take four mint sprigs, two and a half ounces of bourbon. I'd put three. A table spoon of powder sugar, and a table spoon of water. You put the mint leaves, powder sugar and water in a Collins glass. You fill the glass with shaved, or crushed ice, and then add bourbon. Top that off with more ice. And... I'd like to garnish that with a mint sprig. Serve it with a straw. Two or three of those, and anything sounds good."
Read more Bob Dylan suggestions: Bob Dylan's perfect meatballs.