Creamy Salad { Francia Saláta }

Hungarian "Francia Saláta", literally translates to "French Salad", is often served in new year's eve party platter. The origin of this salad is unknown to me, but this year I thought why not make my own instead of serving the store bought one.
Creamy Salad {Francia Saláta}
source : No salty
Ingredients (I have halved from the original)
150gm frozen green peas
100gm carrots, diced
1 apple, diced
1-2 pcs of gherkins, diced
185ml sour cream
1 Tbsp mayonnaise
1 tsp mustard
1 tsp sugar, or to taste
1 tsp salt, or to taste
1/2 tsp lemon juice
Method
1) Cook diced carrots in cold salted water. When carrots are almost done (al-dente) add in frozen green peas, when both are ready, drained and set it aside to cool
2) When carrots and peas are cooled, start the dressing by mixing mayonnaise, mustard, sugar, salt and lemon juice.
3) Finally mix in carrots, peas, diced apple and gherkins.
4) Keep in the fridge until time to serve. You can serve this as a side to any main meals or cold cuts.