Tim Tam Chocolate Cookie Bars
Indulge in these delicious chocolate cookie bars layered with a creamy filling and a luscious chocolate coating, perfect for sharing or special occasions.
Ingredients
For the cookie base
- 1 cup unsalted butter, softened 226 g
- 3/4 cup granulated sugar 150 g
- 1/2 cup brown sugar 110 g
- 2 large eggs
- 1 tsp vanilla extract
- 2 cups all-purpose flour 250 g
- 3/4 cup cocoa powder 75 g
- 1 tsp baking powder
- 1/2 tsp salt
For the filling
- 1/2 cup unsalted butter, softened 113 g
- 1 1/2 cups powdered sugar 180 g
- 2 tbsp malted milk powder
- 1 tsp vanilla extract
- 2–3 tbsp heavy cream
For the chocolate coating
- 3 cups milk chocolate chips or chopped milk chocolate 510 g
- 1 tbsp coconut oil or shortening
- Flaky sea salt for topping (optional)
Instructions
Preparation
- Preheat your oven to 350°F (175°C). Line a 9x13-inch baking pan with parchment paper.
- In a large bowl, cream together the butter, granulated sugar, and brown sugar until light and fluffy.
- Beat in the eggs and vanilla extract until smooth.
- Add the flour, cocoa powder, baking powder, and salt. Mix until a thick chocolate dough forms.
- Press half the dough evenly into the prepared pan and bake for 10–12 minutes. Let cool completely.
Filling
- For the filling, beat together the butter, powdered sugar, malted milk powder, vanilla, and heavy cream until smooth and fluffy.
- Spread the cream filling thickly over one cooled chocolate cookie layer.
- Place the second layer on top and chill for 30 minutes.
Coating
- Melt the milk chocolate with coconut oil in 30-second intervals until glossy and smooth.
- Dip each bar fully in chocolate, then place on parchment paper.
- Drizzle extra chocolate over the tops and sprinkle lightly with flaky sea salt if desired.
- Chill until the chocolate coating is fully set.
Notes
Store in an airtight container at room temperature for up to a week. They can be refrigerated for a longer shelf life. Consider adding espresso powder for a richer flavor or customize with nuts or different chocolate chips.