Start by preheating your oven to 325°F and greasing a 12-cup Bundt pan with cooking spray.
In a stand mixer, beat the room temperature butter until it's softened. Add the brown sugar and beat on medium-high speed until the mixture is light and fluffy.
Add the eggs one at a time, beating well after each addition. Remember to scrape down the sides of the bowl as needed to ensure everything is well combined.
In a separate bowl, whisk together the flour, baking powder, and salt. Gradually add this mixture to the butter mixture, alternating with the heavy cream. Scrape down the sides of the bowl and beat until the batter is smooth.
Gently fold in the diced strawberries with a spatula until they are evenly distributed in the batter.
Transfer the batter to the prepared Bundt pan, pressing it into an even layer with wet fingers. Bake for about 1 hour and 20 minutes, or until a toothpick inserted into the center comes out clean. If the top starts to brown too quickly, cover it loosely with foil.
Allow the cake to cool in the pan for 15 minutes, then invert it onto a cooling rack set over waxed paper or foil to cool completely.