Portsmouth Frosting

Prep: 10 min

Portsmouth Frosting is a smooth, creamy confection ideal for spreading on cakes and pastries, offering a rich vanilla flavor with a silky texture that delights dessert lovers.

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Ingredients

  • 2 1/2 cups confectioners sugar
  • 1/4 cup cream
  • 1/2 teaspoon vanilla extract
  • 1 tablespoon melted butter

Instructions

  1. Sift the confectioners sugar.
  2. Put the cream in a bowl and beat in the sugar gradually until the frosting is thick enough to spread.
  3. Keep the frosting smooth by blending with a wooden spoon.
  4. Add the vanilla extract and melted butter, then beat well until combined.

Tips & Substitutions

For a smoother frosting, ensure the confectioners sugar is sifted well to avoid lumps. If you want a richer flavor, consider adding a pinch of salt or a dash of almond extract as a substitute for vanilla. For a dairy-free option, you can replace cream with coconut cream or a non-dairy milk alternative thickened with a bit of cornstarch.

Serving Suggestions

This frosting is perfect for topping cupcakes or cakes, and it pairs beautifully with Irish Soda Bread(A St. Patrick'S Day Must!). Consider using it to fill pastries or as a dip for cookies. For extra flair, top with sprinkles or edible glitter for special occasions.

Storage & Reheating

Store any leftover Portsmouth frosting in an airtight container in the refrigerator for up to one week. Before using, let it sit at room temperature for about 15 minutes and give it a good stir to restore its creamy texture. Avoid freezing as it may change the consistency upon thawing.

Nutrition & Diet Analysis (per serving)

Each serving of Portsmouth Frosting contains roughly 348 calories, with 5g protein, 10g carbohydrates, and 32g fat. It is a good source of vitamin A (16% of the Daily Value) and calcium (12% of the Daily Value).

348 kcal 17% DV
Protein Fat Carbs

Macronutrients

Protein 4.7g 9% DV
Total Fat 32.3g 41% DV
Carbs 10.3g 4% DV
Fiber 0g
Sugar 9.9g 20% DV

Electrolytes

Sodium 91.6mg 4% DV
Potassium 199mg 4% DV
Cholesterol 97.5mg 33% DV

Vitamins & Minerals

Vitamin A 145.5mcg 16% DV
Vitamin C 1.4mg 2% DV
Calcium 160.6mg 12% DV
Iron 0.1mg
Diet fit Low-carb Under 400 cal
Contains Milk

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I make this frosting ahead of time?

Yes, you can prepare this frosting a day in advance. Just make sure to store it in an airtight container in the refrigerator. Give it a good stir before using to restore its consistency, as it may thicken when chilled.

How can I make the frosting more colorful?

To add color to your Portsmouth frosting, simply incorporate a few drops of food coloring while mixing in the vanilla extract and melted butter. Gel food coloring works particularly well for vibrant hues without changing the frosting's consistency.

Is there a way to make this frosting less sweet?

If you prefer a less sweet frosting, reduce the amount of confectioners sugar gradually until you reach your desired sweetness. You can also balance the sweetness by adding a touch of cream cheese or sour cream for a tangy flavor.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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