Grease a 9x13 inch baking dish generously with about 1 tablespoon of butter, making sure to coat the bottom and sides so the treats release easily after cooling. While the pan is ready, finely dice the 2 cups of strawberries into roughly 1/4-inch pieces and measure out your rice cereal and white chocolate chips. Having everything prepped and within reach will make the next steps move quickly once the marshmallows start melting.

In a large pot over medium heat, melt the remaining 3/4 cup of butter, then add the marshmallows and stir constantly until completely smooth and melted, about 3-4 minutes. I prefer to use fresh marshmallows from a new bag since older ones have dried out and don't melt as smoothly—this makes a real difference in texture. Once melted, remove the pot from heat immediately to prevent the marshmallows from becoming rubbery.

Add the 8 cups of rice cereal to the melted marshmallow mixture and stir gently but thoroughly to coat every piece. Fold in the 2 cups of white chocolate chips and the diced strawberries from Step 1, stirring until evenly distributed. The warmth of the mixture will slightly soften the chocolate chips, which helps bind everything together while still maintaining their texture.

Transfer the rice krispie mixture into the prepared pan from Step 1 and press it down firmly and evenly using a buttered spatula or your buttered hands. Work quickly while the mixture is still warm and pliable, making sure the layer is even and compact so the treats hold together well when cut. Let cool at room temperature for at least 30 minutes before adding the chocolate drizzle.

Place the 1/2 cup of white chocolate chips in a microwave-safe bowl and melt in 30-second intervals, stirring between each interval, until completely smooth. I like using Ghirardelli white chocolate because it melts more evenly without seizing. Drizzle the melted chocolate over the cooled rice krispie treats in a decorative pattern, then scatter the remaining 1/2 cup of fresh strawberries on top for that strawberry shortcake presentation.

Allow the chocolate drizzle to set for about 5-10 minutes at room temperature, or refrigerate for faster setting if desired. Cut into squares and serve immediately, or store in an airtight container at room temperature for up to 2 days.