Apple Crumble with Brown Butter Oat Streusel & Salted Caramel Drizzle

Warm, jammy apples under a deeply buttery, crisp oat topping—finished with a glossy salted caramel drizzle that makes it genuinely dinner-party special.

Ingredients

• 6 medium apples (about 1.5 kg / 3.3 lb), peeled, cored, sliced 1 cm thick
• 2 tbsp lemon juice (or 1 tbsp apple cider vinegar)
• 1/3 cup (70g) brown sugar, packed (for apples)
• 2 tbsp (15g) all-purpose flour (for apples)
• 1 tsp ground cinnamon
• 1/4 tsp ground nutmeg (optional but special)
• 1/2 tsp fine salt, divided
• 1 tsp vanilla extract (optional)
• 1/2 cup (115g) unsalted butter
• 1 cup (90g) rolled oats
• 3/4 cup (95g) all-purpose flour
• 1/2 cup (110g) brown sugar, packed
• 1/2 tsp baking powder (optional, for extra crunch)
• 1/2 tsp ground cinnamon
• 2 tbsp neutral oil (optional, helps keep topping crisp)
• 1/2 cup (100g) white sugar
• 3 tbsp water
• 3 tbsp (45g) unsalted butter, cubed
• 1/3 cup (80ml) heavy cream (or thickened cream)
• 1/2 tsp flaky salt (or 1/4 tsp fine salt)
• 1/2 tsp vanilla extract (optional)

Method

• 1

  Step 1: Heat oven & prep dish

  Preheat oven to **190°C / 375°F (170°C fan)**. Lightly grease a **2–2.5 L (9x13"/similar)** baking dish with a little butter or oil.

• 2

  Step 2: Toss the apples

  In a large bowl, toss apples with **lemon juice**, **brown sugar**, **flour**, **cinnamon**, **nutmeg (if using)**, **1/4 tsp salt**, and **vanilla**. Tip into the baking dish and spread out evenly.

• 3

  Step 3: Brown the butter (big flavour payoff)

  In a small saucepan over **medium heat**, melt **1/2 cup butter**. Keep cooking, swirling often, until you see **golden-brown specks** and it smells **nutty and toasty**, **3–5 minutes**. Immediately pour into a heatproof bowl to stop it overcooking.

• 4

  Step 4: Make the streusel topping

  In a bowl, mix **oats, flour, brown sugar, baking powder (if using), cinnamon, and 1/4 tsp salt**. Pour in the **warm brown butter** (and **oil, if using**). Stir until clumpy and sandy—when you squeeze a handful, it should hold together in crumbs.

• 5

  Step 5: Top the crumble

  Scatter streusel evenly over apples, making some **bigger clumps** for extra crunch.

• 6

  Step 6: Bake

  Bake for **35–45 minutes** until the topping is **deep golden** and the apple juices are **bubbling up around the edges**. If the topping browns too fast, loosely tent with foil for the last 10 minutes.

• 7

  Step 7: Make salted caramel drizzle

  While crumble bakes (or right after), add **sugar + water** to a small saucepan over **medium heat**. Stir just until sugar dissolves, then **stop stirring**. Let it bubble until it turns a **deep amber** (like a copper penny), **6–10 minutes**.

• 8

  Step 8: Rest, drizzle, serve

  Let crumble stand **10 minutes** (it sets and thickens). Drizzle warm salted caramel over the top just before serving.

Tips

• **Best apples:** Use a mix if you can—**Granny Smith** for tang + **Gala/Honeycrisp** for sweetness and texture.
• **No cream for caramel:** Use **evaporated milk** if that’s what you have; it works well. (Regular milk is thinner but still usable—simmer caramel 1–2 minutes to thicken.)
• **Extra special finishing touch:** Add a tiny pinch of **flaky salt** on top after drizzling caramel—it makes the flavours pop.
• **Make-ahead:** Bake earlier in the day, then reheat at **160°C / 320°F for 15–20 minutes** to re-crisp the topping.
• **Storage:** Keeps **3 days** in the fridge. Reheat in the oven (best) or microwave (fast, but topping softens).
• **Serving ideas:** Perfect with **vanilla ice cream, whipped cream, or thick yogurt** (all optional).

Nutrition (per serving, estimate)