Using an immersion blender or a zip top bag and rolling pin, crush graham crackers until a fine powder forms.
Combine crushed graham crackers, melted butter, light brown sugar, and fine sea salt in a medium sized bowl.
Line 18 cupcakes (on two pans) with paper cups and place a tablespoon of the crust mixture into each cup. Compress the crust with the bottom of a glass cup or a measuring cup. Set aside.
Mini Cheesecake Filling
Preheat oven to 350℉.
In the bowl of a stand mixer, add the room temperature cream cheese, sour cream and sugar. Beat on low speed until combined and smooth.
In a separate bowl, beat eggs, egg yolk, vanilla extract and fine sea salt.
Add the egg mixture to the stand mixer bowl, and stir on low speed until completely incorporated and smooth. Take care not to overmix the filling.
Portion ¼ cup of filling into the prepared muffin tins. Bake for 15-minutes. The internal temperature of the cheesecakes should read 150℉ on an instant read thermometer.
Remove from oven and allow to cool to room temperature, about 1 hour. Cover and refrigerate until completely chilled, approximately 3-hours.
Strawberry Compote
While cheesecakes are cooking or cooling, add the strawberries, sugar, lemon juice, and kosher salt to a medium sauce pan. Heat over medium-high heat until boiling. Reduce heat to medium-low and simmer for 25 to 30-minutes until thick and jam-like.
Remove from heat and allow to cool completely.
Streusel Topping
Preheat Oven to 350°F. (If not already pre-heated from baking cheesecakes)
While cheesecakes are cooking or cooling, In a medium bowl, mix sugar, flour, butter and salt with a fork or your fingers until incorporated and varying sized clumps form.
Spread evenly over a parchment paper lined baking sheet and bake for 8-minutes, stirring half way through.
Remove and allow to cool completely. Break any larger sized pieces into smaller ones if they are too big.
Mini Strawberry Cheesecake Assembly
Remove cheesecakes from the fridge and uncover.
Place a teaspoon of Strawberry Compote over the chilled cheesecakes.
Garnish with a small sprinkle of Streusel Topping.