In the bow of a stand mixer fitted with the paddle attachment, cream together 44 grams of butter (3 TBSP), 60 grams of cream cheese (2 ounces), and 55 grams of granulated sugar.
Mix in 1 large egg and 1 teaspoon of lemon zest until incorporated.
Switch to the dough hook, and add 243 grams of buttermilk (1 cup), 454 grams of all-purpose flour (3 1/2 cups), 6 grams of active dry yeast (1 teaspoon), and 4 grams of kosher salt (1 teaspoon). Mix until everything comes together to form a ball. The mixture should be soft but not sticky. It should bounce back when you push gently on it.
Place the dough in a lightly greased bowl and cover it with plastic wrap. Place it in a warm location for 60-90 minutes or until doubled in size.
Line a 9 x 13-inch pan with a sheet of parchment paper, leaving at least 1.5 inches of overhang to lift the rolls out of the pan.
When the dough has risen, lightly flour your work surface and roll the dough out into a rectangle roughly 15 x 18-inches in size. If you need help eyeballing the size, use your baking pan!
Spread 12 ounces of strawberry jam over the dough, making sure to get it from edge to edge, while leaving a 1 - 2 inch boarder on a long end to use as a seam.
Roll the dough up into a spiral, making sure to roll towards the long edge you left jam-less.
Using a piece of unwaxed dental floss, mark your dough by placing a gentle indent to serve as a cutting guide. Aim to get 10 - 12 rolls from the dough.
To cut the rolls, wiggle the floss underneath the dough and bring the ends of the floss together as if you're tying a knot. Place the rolls in your prepared pan, leaving at least 2 inches between the rolls to allow them to rise.
Cover the rolls with plastic wrap and place them back in a warm location. Allow them to rise for 45-60 minutes, or until doubled in size.
About 30 minutes before the rolls have risen, preheat the oven to 350ΒΊF.
Bake the rolls for 25-30 minutes, or until they are golden brown on the tops.
Allow the rolls to cool completely before icing with the cream cheese frosting. Top with diced strawberries and crushed graham cracker crumbs before serving.