Harvard Beets

Ingredients

• 1.13 kg (2½ pounds)fresh red beetroot, trimmed, peeled and cut into bite-sized pieces
• 5 ml (1 teaspoon)kosher salt, for the cooking water
• 200 g (1 cup)granulated sugar
• 60 ml (¼ cup)white vinegar
• 120 ml (½ cup)cider vinegar
• 2.5 ml (½ teaspoon)kosher salt
• 2.5 ml (½ teaspoon)freshly ground black pepper, finely ground
• 120 ml (½ cup)water reserved from cooking the beetroot
• 16 g (2 tablespoons)cornflour
• 85 g (6 tablespoons)butter

Instructions

1. 1

   Boil the beetroot

   Put the beetroot in a pan of cold water and bring it to the boil. Once boiling, add 5 ml (1 teaspoon) salt and cook for 15 minutes. Ladle out and reserve 120 ml (½ cup) of the cooking water, then drain the rest.

2. 2

   Add the sauce

   Return the beetroot to the pan with the sugar, both vinegars, 2.5 ml (½ teaspoon) salt and the pepper. Stir over a medium heat.

3. 3

   Thicken and finish

   Mix the cornflour with the reserved 120 ml (½ cup) beetroot water, then stir it into the pan. Cook over a medium heat for 5 minutes, then stir in the butter until it has melted into the sauce.

4. 4

   Serve the beets

   Remove the pan from the heat and serve.

What are Harvard beets?

Harvard beets are beetroot served in a sweet-and-sour sauce, a traditional American side often associated with New England home cooking. The combination of sugar and vinegar gives the dish its characteristic sharp-sweet flavour.

This version uses both white and cider vinegar, while cornflour thickens the cooking liquid into a coating sauce. Butter stirred in at the end gives it a smooth finish.

Nutrition and macros by portion

The nutrition label shows one serving as written: 247 calories, 2g protein, 41g carbs, 9g fat.

The beetroot and sugar provide most of the carbohydrates, while the butter contributes most of the fat. Beetroot contributes a little protein, but this is mainly a vegetable side rather than a protein-rich part of the meal. Pair it with a protein source and a plain vegetable or potato side for a more balanced plate.

Choosing and preparing the beetroot

Fresh beetroot: Trim, peel and cut it into bite-sized pieces as directed so the pieces are ready to serve once cooked.

Cooking water: Save 120 ml (½ cup) before draining the beetroot. Its colour and flavour become part of the sauce, and it is also used to mix the cornflour.

Building the sweet-and-sour sauce

Vinegar balance: White vinegar and cider vinegar bring the tang, while sugar supplies the sweetness. The separate vinegars are both added with the beetroot.

Seasoning: Salt and finely ground black pepper round out the sauce. Stir the ingredients over a medium heat so the sugar can dissolve as the mixture warms.

Getting the sauce texture right

Cornflour slurry: Stir the cornflour into the reserved beetroot water before adding it to the pan. This helps it mix evenly into the sauce.

Butter finish: Cook the sauce for 5 minutes over a medium heat, then stir in the butter until melted. The sauce should coat the beetroot rather than remain watery.

Checking the cooking

Boiling time: Cook the beetroot for 15 minutes after adding the salt to the boiling water. The method gives a set time rather than a separate doneness test.

Sauce stage: After adding the cornflour mixture, allow 5 minutes of cooking before stirring in the butter. Take the pan off the heat once the butter has melted into the sauce.

Serving Harvard beets

Serve the beets as a side alongside roast meat, poultry or a savoury main. Their sweet-and-sour sauce also pairs well with plain potatoes or other simply prepared vegetables.

Spoon some sauce over each portion so the beetroot stays glossy and flavourful.

Recipe notes & tips

• Cut the beetroot into pieces of a similar size so they cook at a similar rate.
• Measure and set aside the beetroot cooking water before draining the pan.
• Mix the cornflour thoroughly with the reserved water before pouring it into the pan.
• Stir regularly while the beetroot and sauce heat over a medium flame.
• Add the butter only after the sauce has cooked for 5 minutes.

Variations

• More tang: Adjust the balance by adding a little more vinegar to taste.
• Less sweetness: Reduce the sugar for a sharper sauce.
• Peppery finish: Add extra finely ground black pepper to taste.
• Smooth sauce: Stir continuously as the cornflour mixture cooks into the sauce.
• Serve chilled: Let the cooked beetroot cool and serve it cold as a side.

Common mistakes to avoid

• Discarding all the cooking water: Reserve 120 ml (½ cup) before draining so you can make the sauce.
• Adding dry cornflour: Mix it with the reserved water first to help prevent lumps.
• Skipping the medium heat: Keep to a medium heat as the sauce cooks so it warms and thickens steadily.
• Adding butter too early: Stir it in after the sauce has cooked for 5 minutes, as directed.
• Draining before reserving water: Ladle out the measured cooking water first, then drain the remainder.

How to store

Refrigerate leftovers in a covered container and use within 3–4 days. Reheat gently in a pan or microwave until hot, stirring so the sauce warms evenly.

Frequently asked questions