Today I've cooked an orange cake, t. The recipe washad very few ingredients: only raw orange, salt, eggs and honey.

I'm not sure if it called for orange juice or orange pulp. I assume pulp since there's nothing else to bind together. Shouldn't there be flour?

My expectations about the cake taste were hightaste of the cake were high. I thought that because it uses fewer ingredients, so I thought it would be delicious.

WBut when I tried the cake, it wasn't good, i at all. It was so bitter.!

So I've learned to not use this recipe anymore.

Today I've coo baked an orange cake, t. The recipe was only called for orange, salt, eggs, and honey.

Switch the verb "cook" to "bake", cakes are usually baked inside an oven, cooking would usually refer to a stove top. Also, change "Today I've" to "Today I" Since the verb you're using is already conjugated to the past tense, you don't need to use the verb "have" at all.

I broke the sentence down into two sentences, to avoid using too many commas. However I added one more comma to the second part of your sentence. While listing items, remember to always add a comma right before the "and", This is commonly referred to as an "Oxford Comma".

My expectations aboutfor the cake's taste were high because it uses fewer ingredients, so I thought it would be delicious.

Because the "taste" belongs to the cake, you should say "the cake's taste". This is called a possessive apostrophe; in English, we use a possessive apostrophe when referring to one nouns ownership of another (both "cake" and "taste" are being used as nouns in this sentence)

I also changed "about" to "for", this sounds more concise because your expectations are directed to the cake specifically. The term "expectations about" is typically used for more general topics. For example, I could say "When I was young, I had high expectations about many different things" . This is because "many different things" is a very broad topic, not specific at all.

So I've learned to not decided not to use this recipe anymore.

Since the verb you're using is already conjugated in the past tense, you don't need to use the verb "have' at all. I also changed the word learned to decided because I feel it's more fitting in this situation. It's not incorrect to use "learn", but the sentence feels awkward since you're making a negative statement. For example, "I learned this recipe isn't for me." or "I learned to avoid this recipe" these statements mean the same thing as yours, the only difference is they are not negated, so "learn" feels like a more appropriate verb here.

One nNew tThing I've lLearned tToday

Standard capitalization rules

Today I've coo baked an orange cake, t. The recipe was only used oranges, salt, eggs and honey.

The standard usage in English is to "cook meals" on the stove. Any dessert that is cooked in the oven is considered to be "baked", so you bake a cake, cookies, etc.

My expectations about the cake taste were high because it uses fewer ingredients, so I thought it would be delicious.