Cream Cheese Swirl Blondies

I've only made blondies a few times before and these were another great version. They're super soft and perfectly cream cheese-y. I'd like to try them with different flavours - maybe matcha or earl grey? I'm always thinking about adding tea to baked goods. What flavours do you think would be good in these?

If this sounds good, you might also like:
Black Bottom Cupcakes
Snickerdoodle Blondies
Chewy, Chunky Blondies
White Chocolate Brownies

Cream Cheese Swirl Blondies
Adapted from Martha Stewart (originally found in Holiday Cookies Special from 2005)

Makes 9 large or 16 small squares

11 tablespoons unsalted butter, room temperature, plus more for pan
1 2/3 cups plus 2 tablespoons all-purpose flour
1 teaspoon baking powder
3/4 teaspoon salt
1 cup packed light brown sugar
3 large eggs
1 1/2 teaspoons vanilla extract
6 ounces cream cheese, room temperature
1/4 cup sugar

1. Preheat oven to 325F. Line an 8-inch square baking pan with parchment, allowing a 2-inch overhang.

2. Whisk together 1 2/3 cups flour, the baking powder, and salt in a medium bowl, and set aside.

3. Put 9 tablespoons butter and the brown sugar in the bowl of an electric mixer fitted with the paddle attachment; mix on medium speed until pale and fluffy, about 3 minutes. Add 2 eggs and 1 teaspoon vanilla; mix until combined. Reduce speed to low. Add flour mixture, mix, scraping down sides of bowl, until well combined. Transfer to a large bowl.

4. Put cream cheese, granulated sugar, remaining 2 tablespoons butter, 2 tablespoons flour, 1 egg, and 1/2 teaspoon vanilla into the clean bowl of an electric mixer fitted with the paddle attachment; beat on medium speed until just smooth.

5. Pour half the blondie batter into prepared pan, and spread evenly with an offset spatula. Spoon two-thirds of cream-cheese mixture on top, and spread evenly. Drop dollops of remaining batter on top (spacing about 1 inch apart), and spread. Top with dollops of remaining cream-cheese mixture, about 1 inch apart.

6. Gently swirl cream cheese mixture into batter with a butter knife, running the knife lengthwise and crosswise through layers. Bake until golden brown and a cake tester inserted into center comes out with a few crumbs but is not wet, 45 to 47 minutes. Let cool completely on a wire rack before cutting into squares. Store in the refrigerator once cool.