Lemon-Lime Possets

From the original recipe: "Posset" refers to an old English drink made in a way that's similar to this simple pudding.
A friend of mine made these and when I tried them I just knew Carrie would love them so I decided to make them for her birthday instead of a cake. They're similar to sweet cream, but with a delightful lemon-lime flavor. Soooo good!

Lemon-Lime Possets

2 1/4 C. whipping cream

3/4 C. plus 1 tsp sugar

3 Tbsp fresh lemon juice

2 Tbsp fresh lime juice

1 tsp grated lemon peel

1 tsp grated lime peel

Bring cream and 3/4 cup sugar to boil over medium-high heat, stirring until sugar dissolves. Boil 3 minutes, stirring constantly, adjusting heat as needed to prevent mixture from boiling over. Remove from heat. Stir in lemon juice and lime juice and cool 10 minutes. Stir mixture again and divide among six 1/2-cup ramekins or custard cups. Cover and chill possets until set, at least 4 hours or overnight.

Mix remaining 1 teaspoon sugar, lemon peel, and lime peel in small bowl. Sprinkle atop possets and serve immediately.

Yield: 6 1/2-cup servings

*I doubled the recipe when I made these, and when we ate them, they were watery on the bottom. I'm assuming this is because I doubled it (custard recipes are so picky!!) so if you're going to double this, I recommend doing 2 separate batches. :)