Blackberry Pistachio Bars (Print Version)
Buttery pistachio shortbread topped with blackberry filling and a crunchy pistachio streusel, cooled and cut into bars.
# What You Need:
→ Pistachio Shortbread Base
01 - 1 cup shelled unsalted pistachios
02 - 1 1/3 cups all-purpose flour
03 - 1/2 cup granulated sugar
04 - 1/4 teaspoon salt
05 - 1/2 cup cold unsalted butter, cubed
→ Blackberry Filling
06 - 2 cups fresh blackberries or thawed frozen blackberries
07 - 1/3 cup granulated sugar
08 - 1 tablespoon lemon juice
09 - 1 tablespoon cornstarch
→ Streusel Topping
10 - 1/2 cup all-purpose flour
11 - 1/4 cup rolled oats
12 - 1/3 cup brown sugar
13 - 1/4 cup cold unsalted butter, cubed
14 - 1/3 cup shelled pistachios, roughly chopped
# Directions:
01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper.
02 - Pulse pistachios in a food processor until finely ground. Add flour, sugar, and salt, then pulse to combine. Add cold butter and pulse until mixture becomes coarse and crumbly. Firmly press the mixture into the prepared baking pan.
03 - Bake the pressed base for 12 to 15 minutes, or until lightly golden.
04 - In a mixing bowl, combine blackberries, granulated sugar, lemon juice, and cornstarch. Lightly mash blackberries to release some juices.
05 - In a separate bowl, mix flour, oats, brown sugar, and chopped pistachios. Add cold butter and work in with fingertips until mixture forms coarse crumbs.
06 - Spread the blackberry mixture evenly over the baked base. Sprinkle the streusel topping over the blackberry layer.
07 - Bake for 20 to 22 minutes until topping is golden and filling is bubbling.
08 - Allow bars to cool completely in the pan. Remove from pan using parchment, slice into bars, and serve.
# Expert Tips:
01 -
- This is not your basic bar: every layer brings a new sensation, from the tender crunch of pistachio to the juicy brightness of berries.
- They slice beautifully for gatherings but are just as uplifting when enjoyed silently at the kitchen counter.
02 -
- If the bars are cut before cooling fully, the luscious filling turns into a runny mess—learned this after a few hasty attempts.
- Switching to roasted pistachios made the bars richer, but raw ones highlight the fruit better.
03 -
- I once learned the hard way not to over-process the nuts, as it turns too mushy—pulsing just until crumbly keeps the texture right.
- A little extra lemon juice amplifies the fruit’s flavor without making the filling too runny.