Pistachio Pavlova with Rhubarb Cream Recipe - Delish.com

Ingredients

• 1 c. chopped unsalted pistachios
• 2 tbsp. cornstarch
• 5 lg. egg whites, at room temp.
• 1/2 tsp. kosher salt
• 1 tsp. distilled white vinegar
• 1 1/2 c. sugar
• 4 oz. rhubarb, chopped into 1 in. pieces (1 c.)
• 1/2 tsp. finely grated lemon zest, plus 3 tbsp. fresh lemon juice
• 1 c. hulled and quartered strawberries, plus 1/2 c. small strawberries for garnish
• 1 tsp. vanilla bean paste, or pure vanilla extract
• 1 1/2 c. heavy cream, chilled
• 1/2 c. mascarpone cheese, chilled
• 1/4 c. chopped, unsalted pistachios, for garnish