su-Boysenberry Mousse with Cookie Crumble Image

Photo: Annabelle Breakey; Styling: Robyn Valarik

YieldsServes 6Prep and Cook Time45 minsChill Time3 hrsTotal Time3 hrs 45 mins
AuthorStephanie Spencer

This vanilla mousse, with ribbons of tart-sweet boysenberry sauce, has a delicate, cloudlike texture. If you're substituting raspberries and blackberries, start with more berries for the sauce, as they're not as juicy as boysenberries.

How to Make It

Step 1
1

Sprinkle gelatin over 1/2 cup cold water in a small bowl and let stand until softened, about 5 minutes.

Step 2
2

Meanwhile, in a food processor, purée 1 1/4 cups boysenberries or 3/4 cup each raspberries and blackberries, 1/4 cup sugar, and the lemon juice. Strain purée into a small saucepan, pressing to extract liquid, and discard solids in strainer.

Step 3
3

Stir gelatin mixture, then spoon 2 tsp. into strained purée (set remaining gelatin mixture aside). Cook berry mixture over medium heat, stirring often, until steaming but not simmering, about 3 minutes. Set sauce in a bowl of ice with a little water until cold. Remove from ice bath.

Step 4
4

Heat remaining 1/3 cup sugar and the milk in a medium saucepan over medium-low heat, whisking frequently, until sugar dissolves, 2 to 3 minutes. Add remaining gelatin mixture and cook, whisking often, until steaming, about 2 minutes. Set in ice bath, whisking often, until thickened but still pourable, 9 to 10 minutes; watch carefully, as it thickens quickly.

Step 5
5

Meanwhile, beat cream and vanilla in a large bowl with a mixer until thick and silky. Fold in thickened milk mixture.

Step 6
6

Pour about 1/3 cup mousse into each of 6 small glasses or canning jars. Drizzle each with 1 tbsp. berry sauce. Repeat layers, using all of sauce. Spoon any remaining mousse on top. Draw a table knife through layers to swirl. Cover and chill until set, about 3 hours.

Step 7
7

Sprinkle desserts with crumbled shortbread and remaining berries.

Step 8
8

Make ahead: Through step 6 up to 1 day, chilled.

Ingredients

 1 envelope unflavored gelatin
 2 1/2 cups boysenberries or 1 1/4 cups each raspberries and blackberries, divided
 1/4 cup plus 1/3 cup sugar
 1 tablespoon lemon juice
 1 1/4 cups whole milk
 1 cup heavy whipping cream
 1 teaspoon vanilla extract
 2/3 cup crumbled shortbread cookies

Directions

Step 1
1

Sprinkle gelatin over 1/2 cup cold water in a small bowl and let stand until softened, about 5 minutes.

Step 2
2

Meanwhile, in a food processor, purée 1 1/4 cups boysenberries or 3/4 cup each raspberries and blackberries, 1/4 cup sugar, and the lemon juice. Strain purée into a small saucepan, pressing to extract liquid, and discard solids in strainer.

Step 3
3

Stir gelatin mixture, then spoon 2 tsp. into strained purée (set remaining gelatin mixture aside). Cook berry mixture over medium heat, stirring often, until steaming but not simmering, about 3 minutes. Set sauce in a bowl of ice with a little water until cold. Remove from ice bath.

Step 4
4

Heat remaining 1/3 cup sugar and the milk in a medium saucepan over medium-low heat, whisking frequently, until sugar dissolves, 2 to 3 minutes. Add remaining gelatin mixture and cook, whisking often, until steaming, about 2 minutes. Set in ice bath, whisking often, until thickened but still pourable, 9 to 10 minutes; watch carefully, as it thickens quickly.

Step 5
5

Meanwhile, beat cream and vanilla in a large bowl with a mixer until thick and silky. Fold in thickened milk mixture.

Step 6
6

Pour about 1/3 cup mousse into each of 6 small glasses or canning jars. Drizzle each with 1 tbsp. berry sauce. Repeat layers, using all of sauce. Spoon any remaining mousse on top. Draw a table knife through layers to swirl. Cover and chill until set, about 3 hours.

Step 7
7

Sprinkle desserts with crumbled shortbread and remaining berries.

Step 8
8

Make ahead: Through step 6 up to 1 day, chilled.

Boysenberry Mousse with Cookie Crumble