"Machanka" is a Slovak (or general Eastern European/Appalachian-American, in the US context) recipe for a simple tomato gravy thickened with a roux (flour and fat), often made with bacon fat or butter, and seasoned simply with salt and pepper, sometimes with a pinch of sugar or herbs. It is a humble comfort food typically served over bread, perohi (pierogi), dumplings, or fried potatoes.
Enjoy, Allison