01 - Line a standard 12-cup muffin tin with 8 paper liners and set aside.
02 - In a medium bowl, combine the graham cracker crumbs, melted butter, and granulated sugar. Stir until the mixture resembles wet sand and holds together when pressed.
03 - Divide the crumb mixture evenly among the 8 lined cups, pressing each firmly into the bottom using the back of a spoon or a small measuring cup. Place the tin in the refrigerator to set while preparing the filling.
04 - In a small saucepan, combine 1 cup of fresh blackberries, 1 tablespoon of lemon juice, and 1 teaspoon of culinary lavender buds. Cook over medium heat for 5 to 7 minutes, gently mashing the berries as they soften. Remove from heat and press the mixture through a fine-mesh sieve into a clean bowl, discarding the seeds and lavender buds. Allow the puree to cool completely.
05 - In a medium mixing bowl, beat the softened cream cheese with the powdered sugar using a hand mixer or stand mixer on medium speed until completely smooth and creamy, scraping down the sides as needed.
06 - Add the vanilla extract and the cooled blackberry-lavender puree to the cream cheese mixture. Beat on low speed until evenly combined and no streaks remain.
07 - In a separate chilled bowl, whip the heavy cream until stiff peaks form. Using a spatula, gently fold the whipped cream into the cream cheese mixture in three additions, preserving as much air as possible for a light, mousse-like texture.
08 - Spoon or pipe the filling evenly into the prepared crusts, smoothing the tops with a spatula or the back of a spoon.
09 - Refrigerate the mini cheesecakes for at least 4 hours, or preferably overnight, until the filling is fully set and firm to the touch.
10 - While chilling, prepare the sauce by simmering 1/2 cup of blackberries, honey, 1 teaspoon of lemon juice, and 1/4 teaspoon of dried culinary lavender in a small saucepan over medium heat for 5 to 7 minutes, mashing the berries as they break down. Strain through a fine-mesh sieve and let cool completely before serving.
11 - Carefully remove the cheesecakes from the muffin tin and peel away the paper liners. Top each with fresh blackberries and a drizzle of the blackberry lavender sauce, if desired.