You might be thinking of More Than Gourmet products (demi-glace), which do appear to be discontinued, at least at retail. They company is here: https://www.ajihealthandnutrition.com/solutions/stock-broth-concentrates/ so you might reach out and see if you can get it at a restaurant supply. Better Than Bullion is good as @weinoo says, but usually I just use some soy sauce and caramel coloring. Since you're in the Bay Area you can get caramel coloring at Smart and Final very cheaply.
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You might be thinking of More Than Gourmet products (demi-glace), which do appear to be discontinued. Better Than Bullion is good as @weinoo says, but usually I just use some soy sauce and caramel coloring. Since you're in the Bay Area you can get caramel coloring at Smart and Final very cheaply.