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  • Writer's pictureGolden Gate Gals

Astrology Themed Birthday Party

Updated: Mar 21, 2021

In our household we have not one, not two, but THREE Aquarians. To celebrate their birthdays we thought it was only fitting to throw and an Aquarius/Astrology themed party.

This was a pretty fun party to put together. It is great for a friend who is into astrology, but it can easily be adapted into a party for galaxy or outer-space aficionados. If you want to turn this into a costume party, encourage your guests to dress up as famous people with the same zodiac sign as the guest of honor (i.e famous Aquarians include Abe Lincoln, Charles Darwin, Harry Styles, Shakira).


Astrology Doughnuts

These doughnuts were the highlight of the party! I bought plain doughnuts from my favorite bakery and whipped up a chocolate glaze that I found on Hello Fresh. This turned out to be a quick, effective and delicious centerpiece.

Recipe from


  • 1 Dozen Donuts

  • 3 packs of Gelatin

  • 1 3/4 Cup Sugar

  • 1/2 Cup Sweetened Condensed Milk

  • 1/4 tsp salt

  • 2 1/2 cups White Chocolate Chips

  • 3-4 colors of food coloring


  1. Stir gelatin and 1/2 cup of room temperature water in a bowl and let sit for 5 minutes

  2. In medium saucepan, cook sugar, 3/4 cup water, condensed milk, vanilla and salt over medium heat. Stir occasionally until you see bubbles, about 4 minutes. Add gelatin and stir until dissolved.

  3. Remove from heat and add chocolate chips. Stir until melted. Divide glaze into 4 bowls. Color each bowl with the food coloring. I did a dark blue, a light blue, purple and turquoise for an Aquarius theme.

  4. Using a spoon, drizzle each glaze color across the tops of the doughnuts until you've achieved your desire effect.

Astrology Cake

I ended up only decorating a half dozen doughnuts, so I was able to use the remaining chocolate glaze on a cake! The chocolate glaze hardens into a fondant consistency (but tastes 10x better!)

If you don't want to bake a cake entirely from scratch, one of my housemates taught me a great hack to turn a box cake mix into a delicious delicacy. Substitute milk for the water (same amount as recipe requires), substitute butter for oil (double the amount that the box requires), and add 1 additional egg.


  • 1 Box Cake Mix of Your Choosing

  • Milk (same amount of water the box mix requires)

  • Butter (x2 the amount of oil that the box mix requires)

  • Eggs (+1 additional egg to what the box requires)

  • Buttercream frosting

  • Chocolate Glaze- same recipe as featured above


  1. Mix all of the ingredients and pour into two 8x8 round cake tins

  2. Bake as box requires

  3. Once cakes are cool, frost one cake top then place the second round on top of the newly frosted surface. Once assembled, frost the entire exterior of the cake.

  4. Drizzle your chocolate glaze, alternating colors until you achieve your desired result

  5. Bonus: Etch out your zodiac sign of choice on top

Galaxy Fudge

If you know you have limited time on the day of your event, make this galaxy fudge ahead of time. Make sure to add sprinkles on top to give the fudge its extra glimmer!

Recipe from


  • 3 cups white chocolate chips

  • 14 oz sweetened condensed milk (1 can)

  • 1 Tbs Butter

  • 1 tsp vanilla

  • Food Coloring


  1. Line a square 8x8 baking pan with foil. Spray foil with nonstick cooking spray

  2. Add chocolate chips and sweetened condensed milk to saucepan and mix constantly over medium-low heat until chips are almost melted. Stir in butter and vanilla and continue to stir and heat until completed melted

  3. Divide fudge into bowls and color each bowl with food coloring. I mixed pink, purple, a light blue and dark blue for my fudge.

  4. Drop chocolate into prepared pan, adding random scoops all around. Swirl with a knife then top with sprinkles. Refrigerate until firm, about 4 hours

  5. Remove foil from pan and remove foil from fudge. Cut into 16 squares.

Aquarius Cocktails

For a little boozy fun, make these cocktails! For my party I wanted to play into the Aquarius zodiac sign -the Water Bearer- so I went with a bright blue cocktail. The ingredients were a little hard to track down (you can find pea flower tea at Whole Foods!) but the cocktails are sweet and visually stunning.

Recipe from Makes 4 cocktails.


  • 1 Cup Coconut Rum

  • 1/4 Cup Blue Curacao

  • 1/2 Cup Pineapple Juice

  • 3 Droppers of Pea Flower Extract or Seeped Pea Flower Tea


  1. Blend coconut rum, blue curacao, and pineapple juice together. If you desire, blend with ice to get to snow cone consistency.

  2. Divide into two pitchers. Add pea flower extract to one pitcher so you are left with a purple mixture and blue mixture.

  3. Fill glasses with a few ounces of the blue mixture followed by the purple mixture. Repeat until you have 4-6 layers.

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