Copperbridge Slow-Roasted Tomato Ketchup

Name: Copperbridge Slow-Roasted Tomato Ketchup
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Yield: about 1¾ cups (400 ml)
Cuisine: American
Ingredients: 8, roughly chopped Tomato; 55ml Sunflower Oil; 2, finely diced Shallot; 1 clove, grated Garlic; 1 sprig of fresh thyme (1 g) Thyme; 1 tbsp of vinegar (15 ml) White Wine Vinegar; 1 pinch (1 g) Sugar; 1 pinch (1 g) Salt; 1 pinch (0.5 g) Pepper

Independent adaptation of a publicly published Galton Blackiston recipe. Not affiliated with, sponsored by, or endorsed by Galton Blackiston.

Slow-Roasted Tomato Ketchup from a starred kitchen.

Ratio

Sunflower Oil 55 mlWhite Wine Vinegar 15 ml

Ingredients

Tomato — 8, roughly chopped
Sunflower Oil — 55ml
Shallot — 2, finely diced
Garlic — 1 clove, grated
Thyme — 1 sprig of fresh thyme (1 g)
White Wine Vinegar — 1 tbsp of vinegar (15 ml)
Sugar — 1 pinch (1 g)
Salt — 1 pinch (1 g)
Pepper — 1 pinch (0.5 g)

Method

This sauce is cooked on the stove — the jar is for storing it, not making it.
Cook ingredients gently according to the published technique, adapted here as pantry quantities only.
Finish off heat; adjust seasoning.

Companion jar

Copperbridge Slow-Roasted Tomato Ketchup wants a whisk and a stove — make it from this page.

The jar carries pour-and-shake sauces. These are its closest cousins from kitchens like this one:

4 kitchens · 8 stars · 1 national award

Heston Homemade Ketchup★★★ KITCHEN
Copperhall Bois Boudran★ STARRED KITCHEN
Copperdock Arrabiata★ STARRED KITCHEN
Midtown Buttermilk★★★ KITCHEN

Build the companion jar

First run is small.

Leave an email and we’ll hold a jar with its companions on it.

Provenance

Galton Blackiston works in Modern British / Norfolk produce at Morston Hall; credentials include Michelin 1* (Morston Hall, Norfolk).

Originally published as Slow-Roasted Tomato Ketchup.

Adapted from a Galton Blackiston recipe (Galton Blackiston / Great British Chefs).

FAQ

Can this go in a shake jar?

No — this one needs a blender or stove, so make it from this page. Jars only carry pour-and-shake sauces — its companion jar is below.

What do the quantities mean?

Amounts follow the published recipe in household units (with metric in parentheses). On a jar, every sauce scales to the same fill height.

Where did this recipe come from?

Adapted from Galton Blackiston / Great British Chefs (published as “Slow-Roasted Tomato Ketchup”). Full citation lives in Provenance.

Companion jar