Lemon Icebox Cheesecake

Name: Lemon Icebox Cheesecake
Ingredients: 10 lemon sandwich cookies , broken into pieces (about 1 1/4 cups); 2 tablespoons unsalted butter , melted; 1 teaspoon grated lemon zest; 1 large egg plus 1 egg yolk; 1/4 cup (1¾ ounces/50 grams) sugar; Pinch salt; 2 tablespoons lemon juice; 1 tablespoon unsalted butter; 1 tablespoon heavy cream; 2 3/4 teaspoons unflavored gelatin; 1/4 cup lemon juice (2 lemons); 1 1/2 pounds (680 grams) cream cheese , cut into 1-inch pieces and softened; 3/4 cup (5¼ ounces/149 grams) sugar; 1 1/4 cups heavy cream , room temperature