Let all simmer together for ten minutes, and rub them through a tamis cloth till the soup is of a proper thickness; season it to the palate with salt; make it boil, and serve it up with a gill of cream in it.
Let them stew till they are quite tender and almost dissolved; then add crumbs of bread made crisp, sufficient to make it of a proper thickness.
Take some old peas, boil them in water, with a sprig of mint and a large lettuce, strain them through a sieve; mix them with your soup till of proper thickness.
It does not require much cream to make the puree of a proper thickness.
Mix two ounces of butter with flour enough to make a paste, put it with the sauce on the fire, add a tablespoonful of cider vinegar; simmer till of a proper thickness, and use.
This is of proper thicknessto be mixed at table with flavouring essences, anchovy, mushroom, or cavice, &c.
Before you put eggs or cream into a sauce, have all your other ingredients well boiled, and the sauce or soup of proper thickness; because neither eggs nor cream will contribute to thicken it.
When the milk tastes of the seasoning, sweeten it enough for the whole; pour into the cream, stirring it well; then give the custard a simmer, till it come to a proper thickness.
Then take it out, put in some butter rolled in flour, with a minced lemon, and simmer them to a proper thickness.
Then add the almonds, stir it all over a slow fire till of a proper thickness, without boiling, and pour it into cups.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "proper thickness" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.